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Physicochemical properties of microwave heated sago (Metroxylon sagu) starch


Zailani, Mohd Alhafiizh and Abd Razak, Hanisah Kamilah and Awang Husaini‬, ‪Awang Ahmad Sallehin and Sarbini, Shahrul Razid (2021) Physicochemical properties of microwave heated sago (Metroxylon sagu) starch. CyTA - Journal of Food, 19 (1). 596 - 605. ISSN 1947-6345


Sago starch is an underutilized starch due to its low functionality in food formulation. Modification is effective in improving starch functional properties. In this study, the starch were modified to enhance its functional properties. The starch was microwave-heated with different treatment durations of 5, 10, 15, or 20 min, separately, yielding microwave-heated starches (MHT1, MHT2, MHT3, and MHT4). The modified starches have irregular shaped granules and fissures while maintaining their mean diameters. The degree of double helix had increased, indicating more double helix structure of amylose formed. The modified starches’ moisture content, solubility, and paste clarity were significantly decreased. The MHT4 had its swelling power and syneresis increase. In conclusion, the treatment duration influenced the physicochemical properties of the sago starch, which is related to the formation of amylose double helix structure. Further study should focus on the formation of double helix structure in starch and its impact towards food structure.

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Additional Metadata

Item Type: Article
Divisions: Halal Products Research Institute
Faculty of Agricultural Science and Forestry
DOI Number: https://doi.org/10.1080/19476337.2021.1934550
Publisher: Taylor & Francis
Keywords: Amylose; FTIR; Irradiation; Oil binding; Water binding; Microwave
Depositing User: Mas Norain Hashim
Date Deposited: 07 Dec 2022 01:06
Last Modified: 07 Dec 2022 01:06
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1080/19476337.2021.1934550
URI: http://psasir.upm.edu.my/id/eprint/94593
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